/*

Author   : chaos

FileName : circle.h

Date     : 17/08/17 21:48:05

*/

#define PI 3.14159

#define circle_area(R) ((PI)*(R)*(R))

void circle(double);

class Circle
{
    double radius;

    public:
        Circle(double);
        double getArea();
        double getPerim();
};


